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Finding the Fourth Proportional to 346,819, 478,649.10 and 195,925.72

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Solution

The fourth proportional to 346,819, 478,649.10 and 195,925.72 is: 270,399.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,819 : 478,649.10 = 195,925.72 : x
  2. Step 2: Convert to fraction form
    346,819/478,649.10 = 195,925.72/x
  3. Step 3: Cross multiply
    346,819x = 478,649.10 × 195,925.72
  4. Step 4: Simplify right side
    346,819x = 93,779,669,544.85
  5. Step 5: Solve for x
    x = 93,779,669,544.85/346,819
  6. Step 6: Final answer
    x = 270,399.46

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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.