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Finding the Fourth Proportional to 371,247.60, 556,871.40 and 90,767.60

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Solution

The fourth proportional to 371,247.60, 556,871.40 and 90,767.60 is: 136,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,247.60 : 556,871.40 = 90,767.60 : x
  2. Step 2: Convert to fraction form
    371,247.60/556,871.40 = 90,767.60/x
  3. Step 3: Cross multiply
    371,247.60x = 556,871.40 × 90,767.60
  4. Step 4: Simplify right side
    371,247.60x = 50,545,880,486.64
  5. Step 5: Solve for x
    x = 50,545,880,486.64/371,247.60
  6. Step 6: Final answer
    x = 136,151.40

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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.