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Finding the Fourth Proportional to 448,484.32, 672,345.46 and 208,737.45

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Solution

The fourth proportional to 448,484.32, 672,345.46 and 208,737.45 is: 312,928.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,484.32 : 672,345.46 = 208,737.45 : x
  2. Step 2: Convert to fraction form
    448,484.32/672,345.46 = 208,737.45/x
  3. Step 3: Cross multiply
    448,484.32x = 672,345.46 × 208,737.45
  4. Step 4: Simplify right side
    448,484.32x = 140,343,676,839.48
  5. Step 5: Solve for x
    x = 140,343,676,839.48/448,484.32
  6. Step 6: Final answer
    x = 312,928.84

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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.