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Finding the Fourth Proportional to 306,574.08, 423,075.06 and 170,613.76

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Solution

The fourth proportional to 306,574.08, 423,075.06 and 170,613.76 is: 235,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,574.08 : 423,075.06 = 170,613.76 : x
  2. Step 2: Convert to fraction form
    306,574.08/423,075.06 = 170,613.76/x
  3. Step 3: Cross multiply
    306,574.08x = 423,075.06 × 170,613.76
  4. Step 4: Simplify right side
    306,574.08x = 72,182,426,748.83
  5. Step 5: Solve for x
    x = 72,182,426,748.83/306,574.08
  6. Step 6: Final answer
    x = 235,448.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.