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Finding the Fourth Proportional to 157,643.40, 236,465.10 and 148,312.20

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Solution

The fourth proportional to 157,643.40, 236,465.10 and 148,312.20 is: 222,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,643.40 : 236,465.10 = 148,312.20 : x
  2. Step 2: Convert to fraction form
    157,643.40/236,465.10 = 148,312.20/x
  3. Step 3: Cross multiply
    157,643.40x = 236,465.10 × 148,312.20
  4. Step 4: Simplify right side
    157,643.40x = 35,070,659,204.22
  5. Step 5: Solve for x
    x = 35,070,659,204.22/157,643.40
  6. Step 6: Final answer
    x = 222,468.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.