Home / 287,117.46-430,359.04-118,544.85

Finding the Fourth Proportional to 287,117.46, 430,359.04 and 118,544.85

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Solution

The fourth proportional to 287,117.46, 430,359.04 and 118,544.85 is: 177,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,117.46 : 430,359.04 = 118,544.85 : x
  2. Step 2: Convert to fraction form
    287,117.46/430,359.04 = 118,544.85/x
  3. Step 3: Cross multiply
    287,117.46x = 430,359.04 × 118,544.85
  4. Step 4: Simplify right side
    287,117.46x = 51,016,847,842.94
  5. Step 5: Solve for x
    x = 51,016,847,842.94/287,117.46
  6. Step 6: Final answer
    x = 177,686.33

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1.5x scale

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.