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Finding the Fourth Proportional to 871,210.78, 1,306,881.78 and 240,119.13

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Solution

The fourth proportional to 871,210.78, 1,306,881.78 and 240,119.13 is: 360,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,210.78 : 1,306,881.78 = 240,119.13 : x
  2. Step 2: Convert to fraction form
    871,210.78/1,306,881.78 = 240,119.13/x
  3. Step 3: Cross multiply
    871,210.78x = 1,306,881.78 × 240,119.13
  4. Step 4: Simplify right side
    871,210.78x = 313,807,316,026.45
  5. Step 5: Solve for x
    x = 313,807,316,026.45/871,210.78
  6. Step 6: Final answer
    x = 360,196.78

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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.