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Finding the Fourth Proportional to 340,025.85, 510,020.30 and 103,350.08

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Solution

The fourth proportional to 340,025.85, 510,020.30 and 103,350.08 is: 155,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,025.85 : 510,020.30 = 103,350.08 : x
  2. Step 2: Convert to fraction form
    340,025.85/510,020.30 = 103,350.08/x
  3. Step 3: Cross multiply
    340,025.85x = 510,020.30 × 103,350.08
  4. Step 4: Simplify right side
    340,025.85x = 52,710,636,889.84
  5. Step 5: Solve for x
    x = 52,710,636,889.84/340,025.85
  6. Step 6: Final answer
    x = 155,019.50

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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.