Home / 346,894.19-478,861.54-210,971.79

Finding the Fourth Proportional to 346,894.19, 478,861.54 and 210,971.79

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Solution

The fourth proportional to 346,894.19, 478,861.54 and 210,971.79 is: 291,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,894.19 : 478,861.54 = 210,971.79 : x
  2. Step 2: Convert to fraction form
    346,894.19/478,861.54 = 210,971.79/x
  3. Step 3: Cross multiply
    346,894.19x = 478,861.54 × 210,971.79
  4. Step 4: Simplify right side
    346,894.19x = 101,026,275,728.53
  5. Step 5: Solve for x
    x = 101,026,275,728.53/346,894.19
  6. Step 6: Final answer
    x = 291,230.81

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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.