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Finding the Fourth Proportional to 448,073.65, 618,347.10 and 257,104.81

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Solution

The fourth proportional to 448,073.65, 618,347.10 and 257,104.81 is: 354,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,073.65 : 618,347.10 = 257,104.81 : x
  2. Step 2: Convert to fraction form
    448,073.65/618,347.10 = 257,104.81/x
  3. Step 3: Cross multiply
    448,073.65x = 618,347.10 × 257,104.81
  4. Step 4: Simplify right side
    448,073.65x = 158,980,013,659.55
  5. Step 5: Solve for x
    x = 158,980,013,659.55/448,073.65
  6. Step 6: Final answer
    x = 354,807.77

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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.