Home / 421,101.24-581,116.32-230,111.16

Finding the Fourth Proportional to 421,101.24, 581,116.32 and 230,111.16

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Solution

The fourth proportional to 421,101.24, 581,116.32 and 230,111.16 is: 317,551.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,101.24 : 581,116.32 = 230,111.16 : x
  2. Step 2: Convert to fraction form
    421,101.24/581,116.32 = 230,111.16/x
  3. Step 3: Cross multiply
    421,101.24x = 581,116.32 × 230,111.16
  4. Step 4: Simplify right side
    421,101.24x = 133,721,350,490.13
  5. Step 5: Solve for x
    x = 133,721,350,490.13/421,101.24
  6. Step 6: Final answer
    x = 317,551.55

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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.