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Finding the Fourth Proportional to 242,854.80, 364,136.40 and 124,756.80

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Solution

The fourth proportional to 242,854.80, 364,136.40 and 124,756.80 is: 187,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,854.80 : 364,136.40 = 124,756.80 : x
  2. Step 2: Convert to fraction form
    242,854.80/364,136.40 = 124,756.80/x
  3. Step 3: Cross multiply
    242,854.80x = 364,136.40 × 124,756.80
  4. Step 4: Simplify right side
    242,854.80x = 45,428,492,027.52
  5. Step 5: Solve for x
    x = 45,428,492,027.52/242,854.80
  6. Step 6: Final answer
    x = 187,060.30

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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.