Home / 346,689.06-478,578.21-210,766.41

Finding the Fourth Proportional to 346,689.06, 478,578.21 and 210,766.41

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Solution

The fourth proportional to 346,689.06, 478,578.21 and 210,766.41 is: 290,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,689.06 : 478,578.21 = 210,766.41 : x
  2. Step 2: Convert to fraction form
    346,689.06/478,578.21 = 210,766.41/x
  3. Step 3: Cross multiply
    346,689.06x = 478,578.21 × 210,766.41
  4. Step 4: Simplify right side
    346,689.06x = 100,868,211,225.93
  5. Step 5: Solve for x
    x = 100,868,211,225.93/346,689.06
  6. Step 6: Final answer
    x = 290,947.20

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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.