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Finding the Fourth Proportional to 255,689.75, 383,534.61 and 242,904.34

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Solution

The fourth proportional to 255,689.75, 383,534.61 and 242,904.34 is: 364,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,689.75 : 383,534.61 = 242,904.34 : x
  2. Step 2: Convert to fraction form
    255,689.75/383,534.61 = 242,904.34/x
  3. Step 3: Cross multiply
    255,689.75x = 383,534.61 × 242,904.34
  4. Step 4: Simplify right side
    255,689.75x = 93,162,221,084.48
  5. Step 5: Solve for x
    x = 93,162,221,084.48/255,689.75
  6. Step 6: Final answer
    x = 364,356.50

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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.