Home / 346,565.15-478,060.28-208,648.07

Finding the Fourth Proportional to 346,565.15, 478,060.28 and 208,648.07

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Solution

The fourth proportional to 346,565.15, 478,060.28 and 208,648.07 is: 287,814.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,565.15 : 478,060.28 = 208,648.07 : x
  2. Step 2: Convert to fraction form
    346,565.15/478,060.28 = 208,648.07/x
  3. Step 3: Cross multiply
    346,565.15x = 478,060.28 × 208,648.07
  4. Step 4: Simplify right side
    346,565.15x = 99,746,353,907.27
  5. Step 5: Solve for x
    x = 99,746,353,907.27/346,565.15
  6. Step 6: Final answer
    x = 287,814.15

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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.