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Finding the Fourth Proportional to 481,237.50, 721,856.26 and 148,813.50

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Solution

The fourth proportional to 481,237.50, 721,856.26 and 148,813.50 is: 223,220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,237.50 : 721,856.26 = 148,813.50 : x
  2. Step 2: Convert to fraction form
    481,237.50/721,856.26 = 148,813.50/x
  3. Step 3: Cross multiply
    481,237.50x = 721,856.26 × 148,813.50
  4. Step 4: Simplify right side
    481,237.50x = 107,421,956,547.51
  5. Step 5: Solve for x
    x = 107,421,956,547.51/481,237.50
  6. Step 6: Final answer
    x = 223,220.25

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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.