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Finding the Fourth Proportional to 247,866.53, 342,054.90 and 140,457.08

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Solution

The fourth proportional to 247,866.53, 342,054.90 and 140,457.08 is: 193,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,866.53 : 342,054.90 = 140,457.08 : x
  2. Step 2: Convert to fraction form
    247,866.53/342,054.90 = 140,457.08/x
  3. Step 3: Cross multiply
    247,866.53x = 342,054.90 × 140,457.08
  4. Step 4: Simplify right side
    247,866.53x = 48,044,033,308.83
  5. Step 5: Solve for x
    x = 48,044,033,308.83/247,866.53
  6. Step 6: Final answer
    x = 193,830.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.