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Finding the Fourth Proportional to 402,210.54, 555,055.07 and 220,926.69

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Solution

The fourth proportional to 402,210.54, 555,055.07 and 220,926.69 is: 304,881.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,210.54 : 555,055.07 = 220,926.69 : x
  2. Step 2: Convert to fraction form
    402,210.54/555,055.07 = 220,926.69/x
  3. Step 3: Cross multiply
    402,210.54x = 555,055.07 × 220,926.69
  4. Step 4: Simplify right side
    402,210.54x = 122,626,478,278.19
  5. Step 5: Solve for x
    x = 122,626,478,278.19/402,210.54
  6. Step 6: Final answer
    x = 304,881.31

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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.