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Finding the Fourth Proportional to 316,344.61, 436,392.07 and 214,335.17

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Solution

The fourth proportional to 316,344.61, 436,392.07 and 214,335.17 is: 295,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,344.61 : 436,392.07 = 214,335.17 : x
  2. Step 2: Convert to fraction form
    316,344.61/436,392.07 = 214,335.17/x
  3. Step 3: Cross multiply
    316,344.61x = 436,392.07 × 214,335.17
  4. Step 4: Simplify right side
    316,344.61x = 93,534,168,510.10
  5. Step 5: Solve for x
    x = 93,534,168,510.10/316,344.61
  6. Step 6: Final answer
    x = 295,671.76

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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.