Home / 280,273.34-386,785.42-152,957.12

Finding the Fourth Proportional to 280,273.34, 386,785.42 and 152,957.12

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Solution

The fourth proportional to 280,273.34, 386,785.42 and 152,957.12 is: 211,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,273.34 : 386,785.42 = 152,957.12 : x
  2. Step 2: Convert to fraction form
    280,273.34/386,785.42 = 152,957.12/x
  3. Step 3: Cross multiply
    280,273.34x = 386,785.42 × 152,957.12
  4. Step 4: Simplify right side
    280,273.34x = 59,161,583,901.19
  5. Step 5: Solve for x
    x = 59,161,583,901.19/280,273.34
  6. Step 6: Final answer
    x = 211,085.31

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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.