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Finding the Fourth Proportional to 560,030.55, 840,048.87 and 139,306.41

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Solution

The fourth proportional to 560,030.55, 840,048.87 and 139,306.41 is: 208,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,030.55 : 840,048.87 = 139,306.41 : x
  2. Step 2: Convert to fraction form
    560,030.55/840,048.87 = 139,306.41/x
  3. Step 3: Cross multiply
    560,030.55x = 840,048.87 × 139,306.41
  4. Step 4: Simplify right side
    560,030.55x = 117,024,192,304.26
  5. Step 5: Solve for x
    x = 117,024,192,304.26/560,030.55
  6. Step 6: Final answer
    x = 208,960.37

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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.