Home / 402,624.38-555,632.27-218,875.31

Finding the Fourth Proportional to 402,624.38, 555,632.27 and 218,875.31

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Solution

The fourth proportional to 402,624.38, 555,632.27 and 218,875.31 is: 302,053.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,624.38 : 555,632.27 = 218,875.31 : x
  2. Step 2: Convert to fraction form
    402,624.38/555,632.27 = 218,875.31/x
  3. Step 3: Cross multiply
    402,624.38x = 555,632.27 × 218,875.31
  4. Step 4: Simplify right side
    402,624.38x = 121,614,183,111.28
  5. Step 5: Solve for x
    x = 121,614,183,111.28/402,624.38
  6. Step 6: Final answer
    x = 302,053.70

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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.