Home / 346,421.44-478,029.90-203,155.12

Finding the Fourth Proportional to 346,421.44, 478,029.90 and 203,155.12

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Solution

The fourth proportional to 346,421.44, 478,029.90 and 203,155.12 is: 280,335.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,421.44 : 478,029.90 = 203,155.12 : x
  2. Step 2: Convert to fraction form
    346,421.44/478,029.90 = 203,155.12/x
  3. Step 3: Cross multiply
    346,421.44x = 478,029.90 × 203,155.12
  4. Step 4: Simplify right side
    346,421.44x = 97,114,221,698.09
  5. Step 5: Solve for x
    x = 97,114,221,698.09/346,421.44
  6. Step 6: Final answer
    x = 280,335.48

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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.