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Finding the Fourth Proportional to 402,121.68, 554,972.28 and 230,055.60

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Solution

The fourth proportional to 402,121.68, 554,972.28 and 230,055.60 is: 317,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,121.68 : 554,972.28 = 230,055.60 : x
  2. Step 2: Convert to fraction form
    402,121.68/554,972.28 = 230,055.60/x
  3. Step 3: Cross multiply
    402,121.68x = 554,972.28 × 230,055.60
  4. Step 4: Simplify right side
    402,121.68x = 127,674,480,858.77
  5. Step 5: Solve for x
    x = 127,674,480,858.77/402,121.68
  6. Step 6: Final answer
    x = 317,502.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.