Home / 346,721.68-478,485.39-195,818.68

Finding the Fourth Proportional to 346,721.68, 478,485.39 and 195,818.68

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Solution

The fourth proportional to 346,721.68, 478,485.39 and 195,818.68 is: 270,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,721.68 : 478,485.39 = 195,818.68 : x
  2. Step 2: Convert to fraction form
    346,721.68/478,485.39 = 195,818.68/x
  3. Step 3: Cross multiply
    346,721.68x = 478,485.39 × 195,818.68
  4. Step 4: Simplify right side
    346,721.68x = 93,696,377,469.09
  5. Step 5: Solve for x
    x = 93,696,377,469.09/346,721.68
  6. Step 6: Final answer
    x = 270,235.13

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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.