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Finding the Fourth Proportional to 207,000.90, 310,501.35 and 144,015.30

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Solution

The fourth proportional to 207,000.90, 310,501.35 and 144,015.30 is: 216,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,000.90 : 310,501.35 = 144,015.30 : x
  2. Step 2: Convert to fraction form
    207,000.90/310,501.35 = 144,015.30/x
  3. Step 3: Cross multiply
    207,000.90x = 310,501.35 × 144,015.30
  4. Step 4: Simplify right side
    207,000.90x = 44,716,945,070.66
  5. Step 5: Solve for x
    x = 44,716,945,070.66/207,000.90
  6. Step 6: Final answer
    x = 216,022.95

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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.