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Finding the Fourth Proportional to 258,457.60, 387,064.32 and 175,098.88

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Solution

The fourth proportional to 258,457.60, 387,064.32 and 175,098.88 is: 262,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,457.60 : 387,064.32 = 175,098.88 : x
  2. Step 2: Convert to fraction form
    258,457.60/387,064.32 = 175,098.88/x
  3. Step 3: Cross multiply
    258,457.60x = 387,064.32 × 175,098.88
  4. Step 4: Simplify right side
    258,457.60x = 67,774,528,919.96
  5. Step 5: Solve for x
    x = 67,774,528,919.96/258,457.60
  6. Step 6: Final answer
    x = 262,226.88

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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.