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Finding the Fourth Proportional to 304,543.95, 420,274.35 and 168,590.47

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Solution

The fourth proportional to 304,543.95, 420,274.35 and 168,590.47 is: 232,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,543.95 : 420,274.35 = 168,590.47 : x
  2. Step 2: Convert to fraction form
    304,543.95/420,274.35 = 168,590.47/x
  3. Step 3: Cross multiply
    304,543.95x = 420,274.35 × 168,590.47
  4. Step 4: Simplify right side
    304,543.95x = 70,854,248,094.07
  5. Step 5: Solve for x
    x = 70,854,248,094.07/304,543.95
  6. Step 6: Final answer
    x = 232,656.89

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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.