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Finding the Fourth Proportional to 302,495.80, 450,639.47 and 288,848.92

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Solution

The fourth proportional to 302,495.80, 450,639.47 and 288,848.92 is: 430,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,495.80 : 450,639.47 = 288,848.92 : x
  2. Step 2: Convert to fraction form
    302,495.80/450,639.47 = 288,848.92/x
  3. Step 3: Cross multiply
    302,495.80x = 450,639.47 × 288,848.92
  4. Step 4: Simplify right side
    302,495.80x = 130,166,724,218.87
  5. Step 5: Solve for x
    x = 130,166,724,218.87/302,495.80
  6. Step 6: Final answer
    x = 430,309.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.