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Finding the Fourth Proportional to 448,351, 618,724.38 and 247,151.32

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Solution

The fourth proportional to 448,351, 618,724.38 and 247,151.32 is: 341,068.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,351 : 618,724.38 = 247,151.32 : x
  2. Step 2: Convert to fraction form
    448,351/618,724.38 = 247,151.32/x
  3. Step 3: Cross multiply
    448,351x = 618,724.38 × 247,151.32
  4. Step 4: Simplify right side
    448,351x = 152,918,547,233.18
  5. Step 5: Solve for x
    x = 152,918,547,233.18/448,351
  6. Step 6: Final answer
    x = 341,068.82

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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.