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Finding the Fourth Proportional to 402,881.41, 556,023.61 and 230,855.06

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Solution

The fourth proportional to 402,881.41, 556,023.61 and 230,855.06 is: 318,607.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,881.41 : 556,023.61 = 230,855.06 : x
  2. Step 2: Convert to fraction form
    402,881.41/556,023.61 = 230,855.06/x
  3. Step 3: Cross multiply
    402,881.41x = 556,023.61 × 230,855.06
  4. Step 4: Simplify right side
    402,881.41x = 128,360,865,229.41
  5. Step 5: Solve for x
    x = 128,360,865,229.41/402,881.41
  6. Step 6: Final answer
    x = 318,607.07

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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.