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Finding the Fourth Proportional to 661,444.40, 992,555.40 and 240,762.80

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Solution

The fourth proportional to 661,444.40, 992,555.40 and 240,762.80 is: 361,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,444.40 : 992,555.40 = 240,762.80 : x
  2. Step 2: Convert to fraction form
    661,444.40/992,555.40 = 240,762.80/x
  3. Step 3: Cross multiply
    661,444.40x = 992,555.40 × 240,762.80
  4. Step 4: Simplify right side
    661,444.40x = 238,970,417,259.12
  5. Step 5: Solve for x
    x = 238,970,417,259.12/661,444.40
  6. Step 6: Final answer
    x = 361,285.72

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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.