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Finding the Fourth Proportional to 248,472.57, 342,802.05 and 140,980.32

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Solution

The fourth proportional to 248,472.57, 342,802.05 and 140,980.32 is: 194,501.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,472.57 : 342,802.05 = 140,980.32 : x
  2. Step 2: Convert to fraction form
    248,472.57/342,802.05 = 140,980.32/x
  3. Step 3: Cross multiply
    248,472.57x = 342,802.05 × 140,980.32
  4. Step 4: Simplify right side
    248,472.57x = 48,328,342,705.66
  5. Step 5: Solve for x
    x = 48,328,342,705.66/248,472.57
  6. Step 6: Final answer
    x = 194,501.72

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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.