Home / 280,205.37-386,681.45-159,346.62

Finding the Fourth Proportional to 280,205.37, 386,681.45 and 159,346.62

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Solution

The fourth proportional to 280,205.37, 386,681.45 and 159,346.62 is: 219,897.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,205.37 : 386,681.45 = 159,346.62 : x
  2. Step 2: Convert to fraction form
    280,205.37/386,681.45 = 159,346.62/x
  3. Step 3: Cross multiply
    280,205.37x = 386,681.45 × 159,346.62
  4. Step 4: Simplify right side
    280,205.37x = 61,616,381,277.47
  5. Step 5: Solve for x
    x = 61,616,381,277.47/280,205.37
  6. Step 6: Final answer
    x = 219,897.22

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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.