Home / 429,983.16-645,255.64-163,746.24

Finding the Fourth Proportional to 429,983.16, 645,255.64 and 163,746.24

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Solution

The fourth proportional to 429,983.16, 645,255.64 and 163,746.24 is: 245,726.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,983.16 : 645,255.64 = 163,746.24 : x
  2. Step 2: Convert to fraction form
    429,983.16/645,255.64 = 163,746.24/x
  3. Step 3: Cross multiply
    429,983.16x = 645,255.64 × 163,746.24
  4. Step 4: Simplify right side
    429,983.16x = 105,658,184,888.79
  5. Step 5: Solve for x
    x = 105,658,184,888.79/429,983.16
  6. Step 6: Final answer
    x = 245,726.33

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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.