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Finding the Fourth Proportional to 365,111.04, 506,430.93 and 355,400.76

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Solution

The fourth proportional to 365,111.04, 506,430.93 and 355,400.76 is: 492,962.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,111.04 : 506,430.93 = 355,400.76 : x
  2. Step 2: Convert to fraction form
    365,111.04/506,430.93 = 355,400.76/x
  3. Step 3: Cross multiply
    365,111.04x = 506,430.93 × 355,400.76
  4. Step 4: Simplify right side
    365,111.04x = 179,985,937,409.51
  5. Step 5: Solve for x
    x = 179,985,937,409.51/365,111.04
  6. Step 6: Final answer
    x = 492,962.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.