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Finding the Fourth Proportional to 153,492.46, 229,813.56 and 78,451.01

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Solution

The fourth proportional to 153,492.46, 229,813.56 and 78,451.01 is: 117,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,492.46 : 229,813.56 = 78,451.01 : x
  2. Step 2: Convert to fraction form
    153,492.46/229,813.56 = 78,451.01/x
  3. Step 3: Cross multiply
    153,492.46x = 229,813.56 × 78,451.01
  4. Step 4: Simplify right side
    153,492.46x = 18,029,105,893.70
  5. Step 5: Solve for x
    x = 18,029,105,893.70/153,492.46
  6. Step 6: Final answer
    x = 117,459.23

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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.