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Finding the Fourth Proportional to 164,807.40, 247,211.10 and 53,999.40

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Solution

The fourth proportional to 164,807.40, 247,211.10 and 53,999.40 is: 80,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,807.40 : 247,211.10 = 53,999.40 : x
  2. Step 2: Convert to fraction form
    164,807.40/247,211.10 = 53,999.40/x
  3. Step 3: Cross multiply
    164,807.40x = 247,211.10 × 53,999.40
  4. Step 4: Simplify right side
    164,807.40x = 13,349,251,073.34
  5. Step 5: Solve for x
    x = 13,349,251,073.34/164,807.40
  6. Step 6: Final answer
    x = 80,999.10

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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.