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Finding the Fourth Proportional to 346,637.40, 520,053.30 and 147,053.40

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Solution

The fourth proportional to 346,637.40, 520,053.30 and 147,053.40 is: 220,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,637.40 : 520,053.30 = 147,053.40 : x
  2. Step 2: Convert to fraction form
    346,637.40/520,053.30 = 147,053.40/x
  3. Step 3: Cross multiply
    346,637.40x = 520,053.30 × 147,053.40
  4. Step 4: Simplify right side
    346,637.40x = 76,475,605,946.22
  5. Step 5: Solve for x
    x = 76,475,605,946.22/346,637.40
  6. Step 6: Final answer
    x = 220,621.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.