Home / 207,273.92-310,385.76-128,148.16

Finding the Fourth Proportional to 207,273.92, 310,385.76 and 128,148.16

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Solution

The fourth proportional to 207,273.92, 310,385.76 and 128,148.16 is: 191,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,273.92 : 310,385.76 = 128,148.16 : x
  2. Step 2: Convert to fraction form
    207,273.92/310,385.76 = 128,148.16/x
  3. Step 3: Cross multiply
    207,273.92x = 310,385.76 × 128,148.16
  4. Step 4: Simplify right side
    207,273.92x = 39,775,364,034.20
  5. Step 5: Solve for x
    x = 39,775,364,034.20/207,273.92
  6. Step 6: Final answer
    x = 191,897.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.