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Finding the Fourth Proportional to 340,210.90, 510,225.18 and 103,490.02

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Solution

The fourth proportional to 340,210.90, 510,225.18 and 103,490.02 is: 155,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,210.90 : 510,225.18 = 103,490.02 : x
  2. Step 2: Convert to fraction form
    340,210.90/510,225.18 = 103,490.02/x
  3. Step 3: Cross multiply
    340,210.90x = 510,225.18 × 103,490.02
  4. Step 4: Simplify right side
    340,210.90x = 52,803,214,082.70
  5. Step 5: Solve for x
    x = 52,803,214,082.70/340,210.90
  6. Step 6: Final answer
    x = 155,207.30

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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.