Home / 280,233.69-386,731.02-159,392.37

Finding the Fourth Proportional to 280,233.69, 386,731.02 and 159,392.37

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Solution

The fourth proportional to 280,233.69, 386,731.02 and 159,392.37 is: 219,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,233.69 : 386,731.02 = 159,392.37 : x
  2. Step 2: Convert to fraction form
    280,233.69/386,731.02 = 159,392.37/x
  3. Step 3: Cross multiply
    280,233.69x = 386,731.02 × 159,392.37
  4. Step 4: Simplify right side
    280,233.69x = 61,641,973,830.32
  5. Step 5: Solve for x
    x = 61,641,973,830.32/280,233.69
  6. Step 6: Final answer
    x = 219,966.32

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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.