Home / 387,152.13-534,038.26-243,663.06

Finding the Fourth Proportional to 387,152.13, 534,038.26 and 243,663.06

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Solution

The fourth proportional to 387,152.13, 534,038.26 and 243,663.06 is: 336,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,152.13 : 534,038.26 = 243,663.06 : x
  2. Step 2: Convert to fraction form
    387,152.13/534,038.26 = 243,663.06/x
  3. Step 3: Cross multiply
    387,152.13x = 534,038.26 × 243,663.06
  4. Step 4: Simplify right side
    387,152.13x = 130,125,396,588.68
  5. Step 5: Solve for x
    x = 130,125,396,588.68/387,152.13
  6. Step 6: Final answer
    x = 336,109.21

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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.