Home / 355,707.26-533,561.78-145,345.19

Finding the Fourth Proportional to 355,707.26, 533,561.78 and 145,345.19

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Solution

The fourth proportional to 355,707.26, 533,561.78 and 145,345.19 is: 218,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,707.26 : 533,561.78 = 145,345.19 : x
  2. Step 2: Convert to fraction form
    355,707.26/533,561.78 = 145,345.19/x
  3. Step 3: Cross multiply
    355,707.26x = 533,561.78 × 145,345.19
  4. Step 4: Simplify right side
    355,707.26x = 77,550,639,988.11
  5. Step 5: Solve for x
    x = 77,550,639,988.11/355,707.26
  6. Step 6: Final answer
    x = 218,018.16

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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.