Home / 389,623.60-584,313.90-153,038.80

Finding the Fourth Proportional to 389,623.60, 584,313.90 and 153,038.80

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Solution

The fourth proportional to 389,623.60, 584,313.90 and 153,038.80 is: 229,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,623.60 : 584,313.90 = 153,038.80 : x
  2. Step 2: Convert to fraction form
    389,623.60/584,313.90 = 153,038.80/x
  3. Step 3: Cross multiply
    389,623.60x = 584,313.90 × 153,038.80
  4. Step 4: Simplify right side
    389,623.60x = 89,422,698,079.32
  5. Step 5: Solve for x
    x = 89,422,698,079.32/389,623.60
  6. Step 6: Final answer
    x = 229,510.48

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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.