Home / 430,686.65-646,089.08-146,300.85

Finding the Fourth Proportional to 430,686.65, 646,089.08 and 146,300.85

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Solution

The fourth proportional to 430,686.65, 646,089.08 and 146,300.85 is: 219,471.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,686.65 : 646,089.08 = 146,300.85 : x
  2. Step 2: Convert to fraction form
    430,686.65/646,089.08 = 146,300.85/x
  3. Step 3: Cross multiply
    430,686.65x = 646,089.08 × 146,300.85
  4. Step 4: Simplify right side
    430,686.65x = 94,523,380,848.21
  5. Step 5: Solve for x
    x = 94,523,380,848.21/430,686.65
  6. Step 6: Final answer
    x = 219,471.35

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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.