Home / 211,510.52-317,248.96-85,061.62

Finding the Fourth Proportional to 211,510.52, 317,248.96 and 85,061.62

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Solution

The fourth proportional to 211,510.52, 317,248.96 and 85,061.62 is: 127,585.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,510.52 : 317,248.96 = 85,061.62 : x
  2. Step 2: Convert to fraction form
    211,510.52/317,248.96 = 85,061.62/x
  3. Step 3: Cross multiply
    211,510.52x = 317,248.96 × 85,061.62
  4. Step 4: Simplify right side
    211,510.52x = 26,985,710,480.92
  5. Step 5: Solve for x
    x = 26,985,710,480.92/211,510.52
  6. Step 6: Final answer
    x = 127,585.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.