Home / 430,233.16-645,335.16-163,984

Finding the Fourth Proportional to 430,233.16, 645,335.16 and 163,984

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Solution

The fourth proportional to 430,233.16, 645,335.16 and 163,984 is: 245,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,233.16 : 645,335.16 = 163,984 : x
  2. Step 2: Convert to fraction form
    430,233.16/645,335.16 = 163,984/x
  3. Step 3: Cross multiply
    430,233.16x = 645,335.16 × 163,984
  4. Step 4: Simplify right side
    430,233.16x = 105,824,640,877.44
  5. Step 5: Solve for x
    x = 105,824,640,877.44/430,233.16
  6. Step 6: Final answer
    x = 245,970.44

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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.