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Finding the Fourth Proportional to 247,935.60, 371,903.40 and 153,457.20

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Solution

The fourth proportional to 247,935.60, 371,903.40 and 153,457.20 is: 230,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,935.60 : 371,903.40 = 153,457.20 : x
  2. Step 2: Convert to fraction form
    247,935.60/371,903.40 = 153,457.20/x
  3. Step 3: Cross multiply
    247,935.60x = 371,903.40 × 153,457.20
  4. Step 4: Simplify right side
    247,935.60x = 57,071,254,434.48
  5. Step 5: Solve for x
    x = 57,071,254,434.48/247,935.60
  6. Step 6: Final answer
    x = 230,185.80

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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.