Home / 211,384.16-291,702.40-115,888.76

Finding the Fourth Proportional to 211,384.16, 291,702.40 and 115,888.76

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Solution

The fourth proportional to 211,384.16, 291,702.40 and 115,888.76 is: 159,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,384.16 : 291,702.40 = 115,888.76 : x
  2. Step 2: Convert to fraction form
    211,384.16/291,702.40 = 115,888.76/x
  3. Step 3: Cross multiply
    211,384.16x = 291,702.40 × 115,888.76
  4. Step 4: Simplify right side
    211,384.16x = 33,805,029,425.02
  5. Step 5: Solve for x
    x = 33,805,029,425.02/211,384.16
  6. Step 6: Final answer
    x = 159,922.25

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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.