Home / 315,278.16-435,084.96-172,041.36

Finding the Fourth Proportional to 315,278.16, 435,084.96 and 172,041.36

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Solution

The fourth proportional to 315,278.16, 435,084.96 and 172,041.36 is: 237,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,278.16 : 435,084.96 = 172,041.36 : x
  2. Step 2: Convert to fraction form
    315,278.16/435,084.96 = 172,041.36/x
  3. Step 3: Cross multiply
    315,278.16x = 435,084.96 × 172,041.36
  4. Step 4: Simplify right side
    315,278.16x = 74,852,608,233.95
  5. Step 5: Solve for x
    x = 74,852,608,233.95/315,278.16
  6. Step 6: Final answer
    x = 237,417.68

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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.