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Finding the Fourth Proportional to 356,079.72, 534,117.93 and 145,717.68

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Solution

The fourth proportional to 356,079.72, 534,117.93 and 145,717.68 is: 218,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,079.72 : 534,117.93 = 145,717.68 : x
  2. Step 2: Convert to fraction form
    356,079.72/534,117.93 = 145,717.68/x
  3. Step 3: Cross multiply
    356,079.72x = 534,117.93 × 145,717.68
  4. Step 4: Simplify right side
    356,079.72x = 77,830,425,606.00
  5. Step 5: Solve for x
    x = 77,830,425,606.00/356,079.72
  6. Step 6: Final answer
    x = 218,575.84

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1.5x scale

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.