Home / 346,920.35-478,830.98-225,851.81

Finding the Fourth Proportional to 346,920.35, 478,830.98 and 225,851.81

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Solution

The fourth proportional to 346,920.35, 478,830.98 and 225,851.81 is: 311,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,920.35 : 478,830.98 = 225,851.81 : x
  2. Step 2: Convert to fraction form
    346,920.35/478,830.98 = 225,851.81/x
  3. Step 3: Cross multiply
    346,920.35x = 478,830.98 × 225,851.81
  4. Step 4: Simplify right side
    346,920.35x = 108,144,842,387.82
  5. Step 5: Solve for x
    x = 108,144,842,387.82/346,920.35
  6. Step 6: Final answer
    x = 311,728.16

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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.