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Finding the Fourth Proportional to 507,267.59, 760,898.99 and 128,189.18

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Solution

The fourth proportional to 507,267.59, 760,898.99 and 128,189.18 is: 192,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,267.59 : 760,898.99 = 128,189.18 : x
  2. Step 2: Convert to fraction form
    507,267.59/760,898.99 = 128,189.18/x
  3. Step 3: Cross multiply
    507,267.59x = 760,898.99 × 128,189.18
  4. Step 4: Simplify right side
    507,267.59x = 97,539,019,453.12
  5. Step 5: Solve for x
    x = 97,539,019,453.12/507,267.59
  6. Step 6: Final answer
    x = 192,283.17

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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.