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Finding the Fourth Proportional to 340,152.60, 510,302.70 and 103,489.13

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Solution

The fourth proportional to 340,152.60, 510,302.70 and 103,489.13 is: 155,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,152.60 : 510,302.70 = 103,489.13 : x
  2. Step 2: Convert to fraction form
    340,152.60/510,302.70 = 103,489.13/x
  3. Step 3: Cross multiply
    340,152.60x = 510,302.70 × 103,489.13
  4. Step 4: Simplify right side
    340,152.60x = 52,810,779,908.14
  5. Step 5: Solve for x
    x = 52,810,779,908.14/340,152.60
  6. Step 6: Final answer
    x = 155,256.14

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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.