Home / 370,130.85-510,784.10-217,171.65

Finding the Fourth Proportional to 370,130.85, 510,784.10 and 217,171.65

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Solution

The fourth proportional to 370,130.85, 510,784.10 and 217,171.65 is: 299,698.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,130.85 : 510,784.10 = 217,171.65 : x
  2. Step 2: Convert to fraction form
    370,130.85/510,784.10 = 217,171.65/x
  3. Step 3: Cross multiply
    370,130.85x = 510,784.10 × 217,171.65
  4. Step 4: Simplify right side
    370,130.85x = 110,927,825,790.77
  5. Step 5: Solve for x
    x = 110,927,825,790.77/370,130.85
  6. Step 6: Final answer
    x = 299,698.95

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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.