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Finding the Fourth Proportional to 306,854.93, 423,429.46 and 170,901.53

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Solution

The fourth proportional to 306,854.93, 423,429.46 and 170,901.53 is: 235,827.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,854.93 : 423,429.46 = 170,901.53 : x
  2. Step 2: Convert to fraction form
    306,854.93/423,429.46 = 170,901.53/x
  3. Step 3: Cross multiply
    306,854.93x = 423,429.46 × 170,901.53
  4. Step 4: Simplify right side
    306,854.93x = 72,364,742,565.85
  5. Step 5: Solve for x
    x = 72,364,742,565.85/306,854.93
  6. Step 6: Final answer
    x = 235,827.21

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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.