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Finding the Fourth Proportional to 153,612.57, 230,457.74 and 42,804.57

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Solution

The fourth proportional to 153,612.57, 230,457.74 and 42,804.57 is: 64,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,612.57 : 230,457.74 = 42,804.57 : x
  2. Step 2: Convert to fraction form
    153,612.57/230,457.74 = 42,804.57/x
  3. Step 3: Cross multiply
    153,612.57x = 230,457.74 × 42,804.57
  4. Step 4: Simplify right side
    153,612.57x = 9,864,644,249.85
  5. Step 5: Solve for x
    x = 9,864,644,249.85/153,612.57
  6. Step 6: Final answer
    x = 64,217.69

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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.