Home / 387,555.47-534,931.76-251,581.48

Finding the Fourth Proportional to 387,555.47, 534,931.76 and 251,581.48

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Solution

The fourth proportional to 387,555.47, 534,931.76 and 251,581.48 is: 347,250.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,555.47 : 534,931.76 = 251,581.48 : x
  2. Step 2: Convert to fraction form
    387,555.47/534,931.76 = 251,581.48/x
  3. Step 3: Cross multiply
    387,555.47x = 534,931.76 × 251,581.48
  4. Step 4: Simplify right side
    387,555.47x = 134,578,923,171.43
  5. Step 5: Solve for x
    x = 134,578,923,171.43/387,555.47
  6. Step 6: Final answer
    x = 347,250.74

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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.