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Finding the Fourth Proportional to 340,459.20, 510,980.40 and 151,210.80

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Solution

The fourth proportional to 340,459.20, 510,980.40 and 151,210.80 is: 226,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,459.20 : 510,980.40 = 151,210.80 : x
  2. Step 2: Convert to fraction form
    340,459.20/510,980.40 = 151,210.80/x
  3. Step 3: Cross multiply
    340,459.20x = 510,980.40 × 151,210.80
  4. Step 4: Simplify right side
    340,459.20x = 77,265,755,068.32
  5. Step 5: Solve for x
    x = 77,265,755,068.32/340,459.20
  6. Step 6: Final answer
    x = 226,945.71

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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.