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Finding the Fourth Proportional to 300,285.70, 450,498.64 and 87,058.06

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Solution

The fourth proportional to 300,285.70, 450,498.64 and 87,058.06 is: 130,607.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,285.70 : 450,498.64 = 87,058.06 : x
  2. Step 2: Convert to fraction form
    300,285.70/450,498.64 = 87,058.06/x
  3. Step 3: Cross multiply
    300,285.70x = 450,498.64 × 87,058.06
  4. Step 4: Simplify right side
    300,285.70x = 39,219,537,631.04
  5. Step 5: Solve for x
    x = 39,219,537,631.04/300,285.70
  6. Step 6: Final answer
    x = 130,607.41

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1.5x scale

Why These Related Problems?

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