Home / 429,339.02-644,303.80-148,856.28

Finding the Fourth Proportional to 429,339.02, 644,303.80 and 148,856.28

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Solution

The fourth proportional to 429,339.02, 644,303.80 and 148,856.28 is: 223,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,339.02 : 644,303.80 = 148,856.28 : x
  2. Step 2: Convert to fraction form
    429,339.02/644,303.80 = 148,856.28/x
  3. Step 3: Cross multiply
    429,339.02x = 644,303.80 × 148,856.28
  4. Step 4: Simplify right side
    429,339.02x = 95,908,666,857.86
  5. Step 5: Solve for x
    x = 95,908,666,857.86/429,339.02
  6. Step 6: Final answer
    x = 223,386.79

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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.