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Finding the Fourth Proportional to 407,125.60, 610,907.10 and 170,492.20

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Solution

The fourth proportional to 407,125.60, 610,907.10 and 170,492.20 is: 255,829.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,125.60 : 610,907.10 = 170,492.20 : x
  2. Step 2: Convert to fraction form
    407,125.60/610,907.10 = 170,492.20/x
  3. Step 3: Cross multiply
    407,125.60x = 610,907.10 × 170,492.20
  4. Step 4: Simplify right side
    407,125.60x = 104,154,895,474.62
  5. Step 5: Solve for x
    x = 104,154,895,474.62/407,125.60
  6. Step 6: Final answer
    x = 255,829.89

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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.