Home / 346,893.81-478,861.02-210,971.42

Finding the Fourth Proportional to 346,893.81, 478,861.02 and 210,971.42

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Solution

The fourth proportional to 346,893.81, 478,861.02 and 210,971.42 is: 291,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,893.81 : 478,861.02 = 210,971.42 : x
  2. Step 2: Convert to fraction form
    346,893.81/478,861.02 = 210,971.42/x
  3. Step 3: Cross multiply
    346,893.81x = 478,861.02 × 210,971.42
  4. Step 4: Simplify right side
    346,893.81x = 101,025,986,977.74
  5. Step 5: Solve for x
    x = 101,025,986,977.74/346,893.81
  6. Step 6: Final answer
    x = 291,230.30

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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.