Home / 211,557.15-317,346.30-69,389.82

Finding the Fourth Proportional to 211,557.15, 317,346.30 and 69,389.82

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Solution

The fourth proportional to 211,557.15, 317,346.30 and 69,389.82 is: 104,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,557.15 : 317,346.30 = 69,389.82 : x
  2. Step 2: Convert to fraction form
    211,557.15/317,346.30 = 69,389.82/x
  3. Step 3: Cross multiply
    211,557.15x = 317,346.30 × 69,389.82
  4. Step 4: Simplify right side
    211,557.15x = 22,020,602,634.67
  5. Step 5: Solve for x
    x = 22,020,602,634.67/211,557.15
  6. Step 6: Final answer
    x = 104,088.20

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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.