Home / 316,140.23-435,761.47-247,109.40

Finding the Fourth Proportional to 316,140.23, 435,761.47 and 247,109.40

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Solution

The fourth proportional to 316,140.23, 435,761.47 and 247,109.40 is: 340,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,140.23 : 435,761.47 = 247,109.40 : x
  2. Step 2: Convert to fraction form
    316,140.23/435,761.47 = 247,109.40/x
  3. Step 3: Cross multiply
    316,140.23x = 435,761.47 × 247,109.40
  4. Step 4: Simplify right side
    316,140.23x = 107,680,755,703.71
  5. Step 5: Solve for x
    x = 107,680,755,703.71/316,140.23
  6. Step 6: Final answer
    x = 340,610.73

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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.