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Finding the Fourth Proportional to 340,365.80, 510,548.70 and 293,126.60

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Solution

The fourth proportional to 340,365.80, 510,548.70 and 293,126.60 is: 439,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,365.80 : 510,548.70 = 293,126.60 : x
  2. Step 2: Convert to fraction form
    340,365.80/510,548.70 = 293,126.60/x
  3. Step 3: Cross multiply
    340,365.80x = 510,548.70 × 293,126.60
  4. Step 4: Simplify right side
    340,365.80x = 149,655,404,565.42
  5. Step 5: Solve for x
    x = 149,655,404,565.42/340,365.80
  6. Step 6: Final answer
    x = 439,689.90

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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.