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Finding the Fourth Proportional to 340,068.93, 510,161.49 and 140,280.10

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Solution

The fourth proportional to 340,068.93, 510,161.49 and 140,280.10 is: 210,444.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,068.93 : 510,161.49 = 140,280.10 : x
  2. Step 2: Convert to fraction form
    340,068.93/510,161.49 = 140,280.10/x
  3. Step 3: Cross multiply
    340,068.93x = 510,161.49 × 140,280.10
  4. Step 4: Simplify right side
    340,068.93x = 71,565,506,427.60
  5. Step 5: Solve for x
    x = 71,565,506,427.60/340,068.93
  6. Step 6: Final answer
    x = 210,444.12

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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.