Home / 309,389.74-464,085.02-84,752.16

Finding the Fourth Proportional to 309,389.74, 464,085.02 and 84,752.16

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Solution

The fourth proportional to 309,389.74, 464,085.02 and 84,752.16 is: 127,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,389.74 : 464,085.02 = 84,752.16 : x
  2. Step 2: Convert to fraction form
    309,389.74/464,085.02 = 84,752.16/x
  3. Step 3: Cross multiply
    309,389.74x = 464,085.02 × 84,752.16
  4. Step 4: Simplify right side
    309,389.74x = 39,332,205,863.47
  5. Step 5: Solve for x
    x = 39,332,205,863.47/309,389.74
  6. Step 6: Final answer
    x = 127,128.34

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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.