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Finding the Fourth Proportional to 439,970.94, 660,010.17 and 155,602.62

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Solution

The fourth proportional to 439,970.94, 660,010.17 and 155,602.62 is: 233,422.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,970.94 : 660,010.17 = 155,602.62 : x
  2. Step 2: Convert to fraction form
    439,970.94/660,010.17 = 155,602.62/x
  3. Step 3: Cross multiply
    439,970.94x = 660,010.17 × 155,602.62
  4. Step 4: Simplify right side
    439,970.94x = 102,699,312,262.16
  5. Step 5: Solve for x
    x = 102,699,312,262.16/439,970.94
  6. Step 6: Final answer
    x = 233,422.94

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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.