Home / 426,148.10-638,779.35-173,320.10

Finding the Fourth Proportional to 426,148.10, 638,779.35 and 173,320.10

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Solution

The fourth proportional to 426,148.10, 638,779.35 and 173,320.10 is: 259,800.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,148.10 : 638,779.35 = 173,320.10 : x
  2. Step 2: Convert to fraction form
    426,148.10/638,779.35 = 173,320.10/x
  3. Step 3: Cross multiply
    426,148.10x = 638,779.35 × 173,320.10
  4. Step 4: Simplify right side
    426,148.10x = 110,713,300,819.94
  5. Step 5: Solve for x
    x = 110,713,300,819.94/426,148.10
  6. Step 6: Final answer
    x = 259,800.06

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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.