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Finding the Fourth Proportional to 577,136.61, 865,238.76 and 240,430.95

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Solution

The fourth proportional to 577,136.61, 865,238.76 and 240,430.95 is: 360,452.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,136.61 : 865,238.76 = 240,430.95 : x
  2. Step 2: Convert to fraction form
    577,136.61/865,238.76 = 240,430.95/x
  3. Step 3: Cross multiply
    577,136.61x = 865,238.76 × 240,430.95
  4. Step 4: Simplify right side
    577,136.61x = 208,030,177,043.62
  5. Step 5: Solve for x
    x = 208,030,177,043.62/577,136.61
  6. Step 6: Final answer
    x = 360,452.23

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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.