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Finding the Fourth Proportional to 346,807.56, 478,529.46 and 219,393.48

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Solution

The fourth proportional to 346,807.56, 478,529.46 and 219,393.48 is: 302,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,807.56 : 478,529.46 = 219,393.48 : x
  2. Step 2: Convert to fraction form
    346,807.56/478,529.46 = 219,393.48/x
  3. Step 3: Cross multiply
    346,807.56x = 478,529.46 × 219,393.48
  4. Step 4: Simplify right side
    346,807.56x = 104,986,243,511.92
  5. Step 5: Solve for x
    x = 104,986,243,511.92/346,807.56
  6. Step 6: Final answer
    x = 302,721.90

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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.