Home / 282,746.76-390,191.32-161,889.90

Finding the Fourth Proportional to 282,746.76, 390,191.32 and 161,889.90

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Solution

The fourth proportional to 282,746.76, 390,191.32 and 161,889.90 is: 223,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,746.76 : 390,191.32 = 161,889.90 : x
  2. Step 2: Convert to fraction form
    282,746.76/390,191.32 = 161,889.90/x
  3. Step 3: Cross multiply
    282,746.76x = 390,191.32 × 161,889.90
  4. Step 4: Simplify right side
    282,746.76x = 63,168,033,775.67
  5. Step 5: Solve for x
    x = 63,168,033,775.67/282,746.76
  6. Step 6: Final answer
    x = 223,408.52

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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.