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Finding the Fourth Proportional to 346,658.28, 478,384.74 and 195,746.28

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Solution

The fourth proportional to 346,658.28, 478,384.74 and 195,746.28 is: 270,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,658.28 : 478,384.74 = 195,746.28 : x
  2. Step 2: Convert to fraction form
    346,658.28/478,384.74 = 195,746.28/x
  3. Step 3: Cross multiply
    346,658.28x = 478,384.74 × 195,746.28
  4. Step 4: Simplify right side
    346,658.28x = 93,642,033,263.77
  5. Step 5: Solve for x
    x = 93,642,033,263.77/346,658.28
  6. Step 6: Final answer
    x = 270,127.78

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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.