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Finding the Fourth Proportional to 304,737.60, 420,533.28 and 170,606.40

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Solution

The fourth proportional to 304,737.60, 420,533.28 and 170,606.40 is: 235,434.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,737.60 : 420,533.28 = 170,606.40 : x
  2. Step 2: Convert to fraction form
    304,737.60/420,533.28 = 170,606.40/x
  3. Step 3: Cross multiply
    304,737.60x = 420,533.28 × 170,606.40
  4. Step 4: Simplify right side
    304,737.60x = 71,745,668,980.99
  5. Step 5: Solve for x
    x = 71,745,668,980.99/304,737.60
  6. Step 6: Final answer
    x = 235,434.25

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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.