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Finding the Fourth Proportional to 216,923.61, 325,309.20 and 65,075.40

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Solution

The fourth proportional to 216,923.61, 325,309.20 and 65,075.40 is: 97,590.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,923.61 : 325,309.20 = 65,075.40 : x
  2. Step 2: Convert to fraction form
    216,923.61/325,309.20 = 65,075.40/x
  3. Step 3: Cross multiply
    216,923.61x = 325,309.20 × 65,075.40
  4. Step 4: Simplify right side
    216,923.61x = 21,169,626,313.68
  5. Step 5: Solve for x
    x = 21,169,626,313.68/216,923.61
  6. Step 6: Final answer
    x = 97,590.24

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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.