Home / 210,931.60-291,085.72-115,438.24

Finding the Fourth Proportional to 210,931.60, 291,085.72 and 115,438.24

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Solution

The fourth proportional to 210,931.60, 291,085.72 and 115,438.24 is: 159,304.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,931.60 : 291,085.72 = 115,438.24 : x
  2. Step 2: Convert to fraction form
    210,931.60/291,085.72 = 115,438.24/x
  3. Step 3: Cross multiply
    210,931.60x = 291,085.72 × 115,438.24
  4. Step 4: Simplify right side
    210,931.60x = 33,602,423,205.93
  5. Step 5: Solve for x
    x = 33,602,423,205.93/210,931.60
  6. Step 6: Final answer
    x = 159,304.83

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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.