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Finding the Fourth Proportional to 270,020.71, 372,674.07 and 156,909.07

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Solution

The fourth proportional to 270,020.71, 372,674.07 and 156,909.07 is: 216,560.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,020.71 : 372,674.07 = 156,909.07 : x
  2. Step 2: Convert to fraction form
    270,020.71/372,674.07 = 156,909.07/x
  3. Step 3: Cross multiply
    270,020.71x = 372,674.07 × 156,909.07
  4. Step 4: Simplify right side
    270,020.71x = 58,475,939,088.90
  5. Step 5: Solve for x
    x = 58,475,939,088.90/270,020.71
  6. Step 6: Final answer
    x = 216,560.95

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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.