Home / 387,748.10-534,829.38-251,538.63

Finding the Fourth Proportional to 387,748.10, 534,829.38 and 251,538.63

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Solution

The fourth proportional to 387,748.10, 534,829.38 and 251,538.63 is: 346,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,748.10 : 534,829.38 = 251,538.63 : x
  2. Step 2: Convert to fraction form
    387,748.10/534,829.38 = 251,538.63/x
  3. Step 3: Cross multiply
    387,748.10x = 534,829.38 × 251,538.63
  4. Step 4: Simplify right side
    387,748.10x = 134,530,249,528.95
  5. Step 5: Solve for x
    x = 134,530,249,528.95/387,748.10
  6. Step 6: Final answer
    x = 346,952.70

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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.